IMR_nutrientWeddellMarch2019

Nutrient data (nitrate, phosphate and silicate) in the eastern Weddell gyre, Kong Haakon VII Hav, and the coast of Dronning Maud Land in the Atlantic sector of the Southern Ocean in March 2019

Dataset Creator	Dataset Title	Dataset Release Date	Dataset Publisher	Dataset DOI	Online Resource
Melissa Chierici (IMR), Agneta Fransson (NPI)	Nutrient data (nitrate, phosphate and silicate) in the eastern Weddell gyre, Kong Haakon VII Hav, and the coast of Dronning Maud Land in the Atlantic sector of the Southern Ocean in March 2019	2020-11-02T00:00:00:00Z	Institute of Marine Research	10.21335/NMDC-1503664923	http://metadata.nmdc.no/metadata-api/landingpage/ebf46b062d1adb96a60c89217945bd58

Role	First Name	Last Name	Email
DIF Author	Arnfinn	Morvik	arnfinn.morvik@hi.no
Investigator	Melissa	Chierici
Technical Contact	Agneta	Fransson

Category	Topic	Term	Variable Level 1
EARTH SCIENCE	OCEANS	OCEAN CHEMISTRY	NUTRIENTS

Oceans

nitrate,phosphate,silicate

Start Date	Stop Date
2019-03-12	2019-03-31

Complete

Location Category	Location Type	Location Subregion1
Ocean	Atlantic Ocean	North Atlantic Ocean

unrestricted

Institute of Marine Research

Data Center Name	Personnel	Data Center URL
Institute of Marine Research, Norwegian Marine Data Centre, Norway Institute of Marine Research, Norwegian Marine Data Centre, Norway	Datacenter Arnfinn Morvik arnfinn.morvik@hi.no
NO/IMR Institute of Marine Research	Originating institution Melissa Chierici	http://www.imr.no

Distribution Media	Distribution Format
ftp	Microsoft Excel

Kauko H.M., T. Hattermann., T. Ryan-Keogh., A. Singh., L. de Steur., A. Fransson, M. Chierici, T. Falkenhaug., E. H. Hallfredsson., G. Bratbak., T. Tsagaraki., S. Moreau. Phenology and environmental control of phytoplankton blooms in the Kong Håkon VII Hav in the Southern Ocean, submitted to Frontiers of Marine Science

Dissolved inorganic nutrients (nitrate, phosphate and silicate) were collected from full water column at a total of 38 stations in the Eastern Weddell Gyre, encompassing the coast of Dronning Maud Land, Kong Haakon VII Hav, and Maud Rise. The sampling took place between 12th of March and 31st March in 2019 onboard RV Kronprins Haakon, with cruise number 2019702. The seawater samples were collected in the water column from a CTD-Rosette system (24-Niskin bottle), and the sample bottles were rinsed three times. The samples were preserved with 250 µL chloroform and stored cold and dark until post-cruise analysis of nitrite, NO2, nitrate, NO3-, phosphate, PO43-, and silicate, Si(OH)4, following standard methods (Grasshoff et al., 2009) at the chemical laboratory at Institute of Marine Research, Bergen, Norway. The chemical laboratory performs regular QUASIMEME intercomparison of nutrients and are accredited according to NS-EN ISO/IEC 17025. Three replicates were analyzed for each sample. The detection limits are 0.06 µmol/L, 0.5 µmol/L, 0.06 µmol/L and 0.7 µmol/L for NO2, NO3, PO43- and Si(OH)4, respectively. The study was funded by the Research Council of Norway (RCN) project “Southern Ocean phytoplankton community characteristics, primary production, CO2 fluxes and the effects of climate change-SOPHY-CO2” (#288370), within the SANOCEAN Norway-South Africa collaboration project.

URL Content Type	URL
GET DATA	https://ftp.nmdc.no/nmdc/IMR/kjemi/Nutrient_2019702.xlsx

Norwegian Marine Datacentre

CEOS IDN DIF

9.7.1

2020-11-02T00:00:00:00Z

CC BY 4.0

POLYGON((13.4 -70.1,2.1 -70.1,2.1 -64.9,13.4 -64.9,13.4 -70.1))